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Z.ai launched GLM-5.3, scoring 60 on the Artificial Analysis Intelligence Index, up 7 points from GLM-5.2. It ties Kimi K3 but trails Opus 5 at 63 and Fable 5 at 62. Once weights release, it becomes the leading open weights model.
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Summary by ByteBrief
Z.ai launches GLM-5.3 with coding gains